Here is something that might be interesting: http://www.improvedsource.com/view.php/Linux-System/2/
Exactly which ideas do you think are worthwhile for default configurations that Fedora developers should spent some time looking at? I honestly don't see much in the way of generally applicable speed-up ideas.
I dont really know. I found that document, I just shared what I found... I am not developper, but I use FC4 on my notebook (no dual boot). Booting the fastest would insterest me, and I just brought some ideas... :-)